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Theorem dilsetN 36763
Description: The set of dilations for a fiducial atom 𝐷. (Contributed by NM, 4-Feb-2012.) (New usage is discouraged.)
Hypotheses
Ref Expression
dilset.a 𝐴 = (Atoms‘𝐾)
dilset.s 𝑆 = (PSubSp‘𝐾)
dilset.w 𝑊 = (WAtoms‘𝐾)
dilset.m 𝑀 = (PAut‘𝐾)
dilset.l 𝐿 = (Dil‘𝐾)
Assertion
Ref Expression
dilsetN ((𝐾𝐵𝐷𝐴) → (𝐿𝐷) = {𝑓𝑀 ∣ ∀𝑥𝑆 (𝑥 ⊆ (𝑊𝐷) → (𝑓𝑥) = 𝑥)})
Distinct variable groups:   𝑥,𝑓,𝐾   𝑓,𝑀   𝑥,𝑆   𝐷,𝑓,𝑥
Allowed substitution hints:   𝐴(𝑥,𝑓)   𝐵(𝑥,𝑓)   𝑆(𝑓)   𝐿(𝑥,𝑓)   𝑀(𝑥)   𝑊(𝑥,𝑓)

Proof of Theorem dilsetN
Dummy variable 𝑑 is distinct from all other variables.
StepHypRef Expression
1 dilset.a . . . 4 𝐴 = (Atoms‘𝐾)
2 dilset.s . . . 4 𝑆 = (PSubSp‘𝐾)
3 dilset.w . . . 4 𝑊 = (WAtoms‘𝐾)
4 dilset.m . . . 4 𝑀 = (PAut‘𝐾)
5 dilset.l . . . 4 𝐿 = (Dil‘𝐾)
61, 2, 3, 4, 5dilfsetN 36762 . . 3 (𝐾𝐵𝐿 = (𝑑𝐴 ↦ {𝑓𝑀 ∣ ∀𝑥𝑆 (𝑥 ⊆ (𝑊𝑑) → (𝑓𝑥) = 𝑥)}))
76fveq1d 6498 . 2 (𝐾𝐵 → (𝐿𝐷) = ((𝑑𝐴 ↦ {𝑓𝑀 ∣ ∀𝑥𝑆 (𝑥 ⊆ (𝑊𝑑) → (𝑓𝑥) = 𝑥)})‘𝐷))
8 fveq2 6496 . . . . . . 7 (𝑑 = 𝐷 → (𝑊𝑑) = (𝑊𝐷))
98sseq2d 3883 . . . . . 6 (𝑑 = 𝐷 → (𝑥 ⊆ (𝑊𝑑) ↔ 𝑥 ⊆ (𝑊𝐷)))
109imbi1d 334 . . . . 5 (𝑑 = 𝐷 → ((𝑥 ⊆ (𝑊𝑑) → (𝑓𝑥) = 𝑥) ↔ (𝑥 ⊆ (𝑊𝐷) → (𝑓𝑥) = 𝑥)))
1110ralbidv 3141 . . . 4 (𝑑 = 𝐷 → (∀𝑥𝑆 (𝑥 ⊆ (𝑊𝑑) → (𝑓𝑥) = 𝑥) ↔ ∀𝑥𝑆 (𝑥 ⊆ (𝑊𝐷) → (𝑓𝑥) = 𝑥)))
1211rabbidv 3397 . . 3 (𝑑 = 𝐷 → {𝑓𝑀 ∣ ∀𝑥𝑆 (𝑥 ⊆ (𝑊𝑑) → (𝑓𝑥) = 𝑥)} = {𝑓𝑀 ∣ ∀𝑥𝑆 (𝑥 ⊆ (𝑊𝐷) → (𝑓𝑥) = 𝑥)})
13 eqid 2772 . . 3 (𝑑𝐴 ↦ {𝑓𝑀 ∣ ∀𝑥𝑆 (𝑥 ⊆ (𝑊𝑑) → (𝑓𝑥) = 𝑥)}) = (𝑑𝐴 ↦ {𝑓𝑀 ∣ ∀𝑥𝑆 (𝑥 ⊆ (𝑊𝑑) → (𝑓𝑥) = 𝑥)})
144fvexi 6510 . . . 4 𝑀 ∈ V
1514rabex 5087 . . 3 {𝑓𝑀 ∣ ∀𝑥𝑆 (𝑥 ⊆ (𝑊𝐷) → (𝑓𝑥) = 𝑥)} ∈ V
1612, 13, 15fvmpt 6593 . 2 (𝐷𝐴 → ((𝑑𝐴 ↦ {𝑓𝑀 ∣ ∀𝑥𝑆 (𝑥 ⊆ (𝑊𝑑) → (𝑓𝑥) = 𝑥)})‘𝐷) = {𝑓𝑀 ∣ ∀𝑥𝑆 (𝑥 ⊆ (𝑊𝐷) → (𝑓𝑥) = 𝑥)})
177, 16sylan9eq 2828 1 ((𝐾𝐵𝐷𝐴) → (𝐿𝐷) = {𝑓𝑀 ∣ ∀𝑥𝑆 (𝑥 ⊆ (𝑊𝐷) → (𝑓𝑥) = 𝑥)})
Colors of variables: wff setvar class
Syntax hints:  wi 4  wa 387   = wceq 1507  wcel 2050  wral 3082  {crab 3086  wss 3823  cmpt 5004  cfv 6185  Atomscatm 35873  PSubSpcpsubsp 36106  WAtomscwpointsN 36596  PAutcpautN 36597  DilcdilN 36712
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1758  ax-4 1772  ax-5 1869  ax-6 1928  ax-7 1965  ax-8 2052  ax-9 2059  ax-10 2079  ax-11 2093  ax-12 2106  ax-13 2301  ax-ext 2744  ax-rep 5045  ax-sep 5056  ax-nul 5063  ax-pr 5182
This theorem depends on definitions:  df-bi 199  df-an 388  df-or 834  df-3an 1070  df-tru 1510  df-ex 1743  df-nf 1747  df-sb 2016  df-mo 2547  df-eu 2584  df-clab 2753  df-cleq 2765  df-clel 2840  df-nfc 2912  df-ne 2962  df-ral 3087  df-rex 3088  df-reu 3089  df-rab 3091  df-v 3411  df-sbc 3676  df-csb 3781  df-dif 3826  df-un 3828  df-in 3830  df-ss 3837  df-nul 4173  df-if 4345  df-sn 4436  df-pr 4438  df-op 4442  df-uni 4709  df-iun 4790  df-br 4926  df-opab 4988  df-mpt 5005  df-id 5308  df-xp 5409  df-rel 5410  df-cnv 5411  df-co 5412  df-dm 5413  df-rn 5414  df-res 5415  df-ima 5416  df-iota 6149  df-fun 6187  df-fn 6188  df-f 6189  df-f1 6190  df-fo 6191  df-f1o 6192  df-fv 6193  df-dilN 36716
This theorem is referenced by:  isdilN  36764
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